Card Number Validation in all languages in bytes. Cheevos Holes Recent Holes Langs Medals Misc All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Topological Sort Trinomial Triangle Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 226th kg583 🇺🇸 806 124 20 Oct 2024 226th AlephSquirrel 806 124 21 Oct 2024 228th emgordon154 805 205 7 Mar 2025 229th kg583 🇺🇸 804 82 1 Oct 2024 229th sean-niemann 🇺🇸 804 82 23 Dec 2024 231st Apataras 803 145 25 Jun 2025 231st edsrzf 🇳🇿 803 145 22 hours ago 233rd trinityy-7 802 80 3 days ago 234th SirBogman 🇺🇸 802 99 8 Oct 2024 235th DialFrost 🇸🇬 802 106 23 Mar 2025 236th ovs-code 🇩🇪 801 75 1 Oct 2024 237th MeWhenI 🇻🇦 801 127 5 Oct 2024 238th stefangimmillaro 801 134 3 Oct 2024 239th antimon2 🇯🇵 800 70 9 Oct 2024 240th xsot 🇸🇬 800 125 20 Oct 2024 241st canissimia 🇦🇶 798 130 4 Oct 2024 242nd Shanethegamer 🇺🇸 797 138 3 Oct 2024 243rd MeWhenI 🇻🇦 795 88 2 Oct 2024 244th stefangimmillaro 795 89 4 Oct 2024 245th duckyluuk 🇳🇱 794 83 3 Oct 2024 245th emgordon154 794 83 18 Nov 2024 247th stefangimmillaro 794 87 4 Oct 2024 248th duckyluuk 🇳🇱 794 99 17 Dec 2024 249th anter69 🇭🇺 794 100 1 Oct 2024 249th bzijlema 🇳🇱 794 100 10 Oct 2024 249th bricknellj 794 100 4 Mar 2025 252nd Shanethegamer 🇺🇸 794 102 4 Oct 2024 253rd Shanethegamer 🇺🇸 794 128 3 Oct 2024 254th tayloia 🇬🇧 793 81 3 Oct 2024 254th targrik 793 81 8 Feb 2025 256th DialFrost 🇸🇬 793 85 1 Oct 2024 256th xsot 🇸🇬 793 85 7 Oct 2024 258th ovs-code 🇩🇪 793 119 1 Oct 2024 259th Shanethegamer 🇺🇸 793 208 14 Apr 2025 259th DialFrost 🇸🇬 793 208 18 Apr 2025 261st edsrzf 🇳🇿 791 76 1 Oct 2024 262nd DialFrost 🇸🇬 791 84 26 Oct 2024 263rd jared-hughes 791 203 20 Dec 2024 264th saito-ta 🇯🇵 790 74 1 Oct 2024 265th emgordon154 790 166 2 Oct 2024 266th pardouin 🇫🇷 789 81 29 Jan 2025 266th ovs-code 🇩🇪 789 81 17 Apr 2025 268th Natanaelel 🇸🇪 788 48 1 Oct 2024 269th kg583 🇺🇸 788 160 13 Feb 2025 269th CLOStrophobic 🇮🇹 788 160 27 Feb 2025 271st MeWhenI 🇻🇦 787 90 2 Oct 2024 272nd lifthrasiir 🇰🇷 787 101 21 Nov 2024 272nd btjones0 787 101 2 Dec 2024 274th MeWhenI 🇻🇦 786 109 2 Oct 2024 275th Shanethegamer 🇺🇸 786 148 3 Oct 2024 276th Shanethegamer 🇺🇸 785 88 4 Oct 2024 277th ovs-code 🇩🇪 784 84 3 Oct 2024 277th Shanethegamer 🇺🇸 784 84 3 Oct 2024 279th MeWhenI 🇻🇦 784 186 2 Oct 2024 280th KingSkyrock 🇺🇸 783 82 14 Oct 2024 281st emgordon154 782 151 17 Jan 2025 282nd stefangimmillaro 781 61 1 Oct 2024 283rd edsrzf 🇳🇿 781 119 3 days ago 284th DialFrost 🇸🇬 781 149 21 Nov 2024 285th MeWhenI 🇻🇦 780 122 5 Oct 2024 286th GrayJoKing 🇦🇺 779 82 1 Oct 2024 287th annaproxy 779 102 1 Oct 2024 288th SirBogman 🇺🇸 778 50 18 days ago 289th Shanethegamer 🇺🇸 778 91 3 Oct 2024 290th SirBogman 🇺🇸 778 138 15 days ago 291st Shanethegamer 🇺🇸 777 152 3 Oct 2024 291st targrik 777 152 19 days ago 293rd sean-niemann 🇺🇸 776 107 3 Oct 2024 294th m-tkach 🇺🇦 776 131 4 Oct 2024 295th uttumuttu 🇫🇮 773 83 1 Oct 2024 295th KatieLG 🇬🇧 773 83 1 Oct 2024 295th Larento 773 83 4 Nov 2024 295th Andrey-Plotnikov 773 83 13 Jan 2025 299th adriweb 🇫🇷 773 102 5 Oct 2024 300th sean-niemann 🇺🇸 771 105 1 Oct 2024 Prev 226–300 of 723 Next